Update spack to 0.20.1. Update ACCESS-OM3 dependencies. Compile for x…

…86_64 generic architecture.

gcc/Dockerfile

@@ -1,21 +1,23 @@
 # Build stage with Spack pre-installed and ready to be used
-FROM spack/ubuntu-jammy:v0.19.0 as builder
+FROM spack/ubuntu-jammy:v0.20.1 as builder
 
 
 # What we want to install and how we want to install it
 # is specified in a manifest file (spack.yaml)
 RUN mkdir /opt/spack-environment \
 &&  (echo "spack:" \
 &&   echo "  specs:" \
-&&   echo "    - [email protected].2" \
-&&   echo "    - [email protected].0+mpi" \
+&&   echo "    - [email protected].4" \
+&&   echo "    - [email protected].2+mpi" \
 &&   echo "    - [email protected]" \
-&&   echo "    - [email protected].8" \
-&&   echo "    - esmf@8.3.1+parallelio~pnetcdf" \
-&&   echo "    - fms@2022.04" \
+&&   echo "    - [email protected].10" \
+&&   echo "    - esmf@8.4.2" \
+&&   echo "    - fms@2021.03.01" \
 &&   echo "  view: /opt/view" \
 &&   echo "  concretizer:" \
 &&   echo "    unify: true" \
+&&   echo "    targets:" \
+&&   echo "      granularity: generic" \
 &&   echo "  config:" \
 &&   echo "    install_tree: /opt/software") > /opt/spack-environment/spack.yaml